.shouye-box{padding-top: 4rem;}
.shouye-header{
  width: 100%;  height: 4rem;z-index: 2;background: #fff;
  line-height: 4rem;position: fixed;top:0;
  ul{
    width: 100%;  height: 100%;
    display: flex;justify-content: space-around;
    li{
      padding: 0 2.2rem;
      a{
        font-size: 1.75rem;color: #000000;
        font-weight: bold;
      }
    }
    .shouye-headerOn{
      border-bottom: 4px solid #F24349;
    }
  }
}